Whoosh! Another tool for exploring Music Genre space. It's based on Spotify's Genre tags.
http://everynoise.com/engenremap.html

Click on things to hear samples of typical artists, or dig down into lists to get Spotify playlists.
http://everynoise.com/everynoise1d.cgi?root=deep%20house&scope=all

LoFi house seems to be buried in the Deep House section.

A companion to this exploration tool.
http://www.musicroamer.com/#/search?similar_artist_limit=6&artist=mall%20grab

As far as I can tell Spotify's genre tags are curated by Spotify or one of their suppliers. And not generated by their users like last.fm So your idea of what's in uk funky or such like may not agree with their's. I've just had a quick look at Google Music again. And their Genre tagging is all over the place as well.